OMNI - The most advanced, hackable NFC Ring® ever! – NFC Ring

The most advanced, hackable NFC Ring ever! The OMNI Ring runs the Java Card™ Operating System - the ultimate open platform for enterprise applications. It allows you as a developer to load custom applications without compromise on security. Designed for multi-application and high security and with developers in mind.

The Open Source Ring-leader

Stainless Steel Wearable Ring with Built-in NFC chip for iPhone, Android or Windows

NFC Smart Ring

OMNI - The most advanced, hackable NFC Ring® ever! – NFC Ring

NFC Multifunctional Smart Ring Fantastic Wearable Device Universal to Mobile Phone Multifunctional Smart Wearable Access Control Stainless Steel Ring (Color : White, Size : 9#) : Electronics

Multifunctional NFC Smart Ring Dual frequency RFID Rings

NFC Ring

This Ring Wearable Tracks your Health + Sleep, enables NFC Payments, and can even Unlock Your Car - Yanko Design

NFC Ring 2016 Range. One Smart Ring. Unlimited Possibilities by John McLear — Kickstarter

Hacking an NFC ring